Add Sequence/Project Settings to Timeline

[reinecke]

Feature Request

It would be helpful to have a set of Sequence/Project settings on a timeline that includes useful information when rendering a sequence.
This could include:

• Video Resolution
• Video Frame Rate
• Audio Sample Rate
• Audio output channels
• Color Space

We should avoid things that don't materially impact how the timeline is evaluated (e.g. output codecs) - those would generally be determined by the context of the application doing the render. Making the proper judgement call on these will be an ongoing challenge.

Context

Suggested by @darbyjohnston in #1679

In that issue, @darbyjohnston comments on the challenge for application developers when we don't include this information:

Currently in tlRender I make a guess at the settings by using the video and audio from the first clip in the timeline. This works mostly OK but fails in some situations and also requires opening the media.

References

• Final Cut Pro 10 Project Settings
• DaVinci Resolve Project Settings
• Adobe Premiere Sequence Settings

[apetrynet]

I touched upon something related some time back. I'll link it here for reference.